System for efficient recovery of node B buffered data following serving high speed downlink shared channel cell change

A method for high speed-downlink shared channel (HS-DSCH) cell change in a system having a remote network controller (RNC) coupled to at least one Node B, which is further coupled to at least one user equipment, the method comprising:

• detecting at the RNC the need for an HS-DSCH cell change;
• notifying the UE of said cell change;
• determining the status of data received at the UE;
• generating a status report based upon said status of the receipt of data at the UE;
• transmitting from the UE to the RNC said status report;
• determining at said RNC based upon said status report the data which is to be transmitted to the UE.

A UE which facilitates high speed-downlink shared channel (HS-DSCH) cell change from a source cell to a target cell comprising:

• means at said UE for determining when a cell change is necessary;
• means for determining the status of data transmitted to the UE prior to said cell change;
• means for generating a status report based upon said determination;
• means for transmitting said data status report.